syntax = "proto3";

package gitaly;

option go_package = "gitlab.com/gitlab-org/gitaly/proto/go/gitalypb";

import "lint.proto";
import "shared.proto";

service RemoteService {
    rpc AddRemote(AddRemoteRequest) returns (AddRemoteResponse) {
      option (op_type) = {
        op: MUTATOR
      };
    }
    rpc FetchInternalRemote(FetchInternalRemoteRequest) returns (FetchInternalRemoteResponse) {
      option (op_type) = {
        op: MUTATOR
      };
    }
    rpc RemoveRemote(RemoveRemoteRequest) returns (RemoveRemoteResponse) {
      option (op_type) = {
        op: MUTATOR
      };
    }

    // UpdateRemoteMirror compares the references in the target repository and its remote mirror
    // repository. Any differences in the references are then addressed by pushing the differing
    // references to the mirror. Created and modified references are updated, removed references are
    // deleted from the mirror. UpdateRemoteMirror updates all tags. Branches are updated if they match
    // the patterns specified in the requests.
    rpc UpdateRemoteMirror(stream UpdateRemoteMirrorRequest) returns (UpdateRemoteMirrorResponse) {
      option (op_type) = {
        op: ACCESSOR
      };
    }
    rpc FindRemoteRepository(FindRemoteRepositoryRequest) returns (FindRemoteRepositoryResponse) {
      option (op_type) = {
        op: ACCESSOR
        scope_level: STORAGE
      };
    }
    rpc FindRemoteRootRef(FindRemoteRootRefRequest) returns (FindRemoteRootRefResponse) {
      option (op_type) = {
        op: ACCESSOR
      };
    }
}

message AddRemoteRequest {
  Repository repository = 1 [(target_repository)=true];
  string name = 2;
  string url = 3;
  // DEPRECATED: https://gitlab.com/gitlab-org/gitaly/proto/merge_requests/137
  reserved 4;
  reserved "mirror_refmap";
  // If any, the remote is configured as a mirror with those mappings
  repeated string mirror_refmaps = 5;
}

message AddRemoteResponse {}

message RemoveRemoteRequest {
  Repository repository = 1 [(target_repository)=true];
  string name = 2;
}

message RemoveRemoteResponse {
  bool result = 1;
}

message FetchInternalRemoteRequest {
  Repository repository = 1 [(target_repository)=true];
  Repository remote_repository = 2;
}

message FetchInternalRemoteResponse {
  bool result = 1;
}

message UpdateRemoteMirrorRequest {
  // repository is the repository whose mirror repository to update.
  Repository repository = 1 [(target_repository)=true];
  // ref_name is actually the remote to update.
  string ref_name = 2;
  // only_branches_matching contains patterns to match branches against. Only
  // the matched brances are updated in the remote mirror. If no patterns are
  // specified, all branches are updated. The patterns should only contain the
  // branch name without the 'refs/heads/' prefix. "*" can be used as a wildcard
  // to match anything. only_branches_matching can be streamed to the server over multiple
  // messages. Optional.
  repeated bytes only_branches_matching = 3;
  // ssh_key is the SSH key to use for accessing to the mirror repository. Optional.
  string ssh_key = 4;
  // known_hosts specifies the identities used for strict host key checking. Optional.
  string known_hosts = 5;
  // keep_divergent_refs specifies whether or not to update diverged references in the
  // mirror repository.
  bool keep_divergent_refs = 6;
}

message UpdateRemoteMirrorResponse {
  // divergent_refs contains a list of references that had diverged in the mirror from the
  // source repository.
  repeated bytes divergent_refs = 1;
}

message FindRemoteRepositoryRequest {
  string remote = 1;
  // This field is used to redirect request to proper storage where it can be handled.
  // As of now it doesn't matter what storage will be used, but it still must be a valid.
  // For more details: https://gitlab.com/gitlab-org/gitaly/-/issues/2442
  string storage_name = 2 [(storage)=true];
}

// This migth throw a GRPC Unavailable code, to signal the request failure
// is transient.
message FindRemoteRepositoryResponse {
  bool exists = 1;
}

message FindRemoteRootRefRequest {
  Repository repository = 1 [(target_repository)=true];
  string remote = 2;
}

message FindRemoteRootRefResponse {
  string ref = 1;
}

message ListRemotesRequest {
   Repository repository = 1 [(target_repository)=true];
}

message ListRemotesResponse {
  message Remote {
    string name = 1;
    string fetch_url = 2;
    string push_url = 3;
  }

  repeated Remote remotes = 1;
}